One of the worst cancers is melanoma, which is rapidly increasing in the white-skinned population. In addition to fair skin and hair colour, the presence of large amounts of moles on the skin is also a serious risk factor for melanoma! The disease can also develop from long-standing moles, although in many cases it forms in an area of the skin where there was no mole in the past. At the beginning of the development of melanoma, it is important to be able to separate it from the moles, which is quite a difficult task!